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Fire is a series of actions and changes that produces a result — a process. In fact, it is an oxidation process (called combustion or burning) that gives out heat and light energy as well as glowing gas and a small amount of plasma. So, talking about fire's mass is like talking about the mass of digestion, or boiling, or getting a driver's license — ...


See e.g. https://en.wikipedia.org/wiki/Saha_ionization_equation. Typical ionization energy for gases in planetary atmospheres are 14eV. The temperature on the surface of Venus is around 750K, which corresponds to an energy of 0.064eV. The exponential in the Saha-Langmuir equation will therefor basically completely suppress the existence of ionized atoms at ...

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